Glazing fastener



' July 7, 1936. J. DOMAGALL GLAZING FASTENER Original Filed July 14, 1935 jizzvzziar.

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Patented July 7, 1936 GLAZING FASTENER John Domagall, Peru, Ill., assignor to W. H. Maze Company, Peru, 111., a corporation of Illinois Application July 14, 1933, Serial No. 680,425 Renewed December 16, 1935 1 Claim. (01. 35-45) This invention relates to glazing fasteners, and has for its principal object to produce a simple and inexpensive, yet materially improved and practical fastening device, adapted more par- 5 ticularly for greenhouse or hothouse Work and the like, which will securely hold the glass panes or panels in place and at the same. time avoid the liability of breaking the glass during installation or causing the glass to break afterwards.

1 In glazing operations the glass pane or panel, before being sealed in place by-the application of putty or other sealing compound, is secured to the sash or frame by means of fasteners, usually of zinc or other non-corrosive metal or of metal 15 plated to resist corrosion, said fasteners being known in the trade as glazing points, the common form being flat triangular or wedge shaped, relatively thin plates, and others being in the form of wedge shaped tacks-or brads, some of 20 which are provided with heads for the application thereto of special driving tools or to afford a substantial surface which may be tapped by a ham- 1 mer.

In the use of the ordinary triangular orwedge 25 shaped flat plate fasteners, particularly in greenhouse orhothouse work, specialskill is required in driving them into place by the use of the hammer and usual glazierfs tools to be placed against the fastener and tapped by the hammer or the 30 special mechanical drivers to prevent breakage of the glass, while in the use of the tapered tack or brad types it is practically impossible, or at least extremely difficult, to drive the fasteners into the supporting. frame or sash parallel with the 35 face of the glass pane or paneLbecause, due to the taper of the fastener, the tendency is for it to drift obliquely or diagonally and thereby exert a wedging action upon the glass which, if it does not immediately break the glass during the driv- 40 ing operation is liable to eventually cause the breaking of the glass under the tension of the fastener thereon or due to the expansive effect of the atmospheric conditions upon the glass and the supporting frame or sash. 45 In the installation of glass panes or panels in either the ordinary window frame or the roofs and Walls of greenhouses, skylights and the like, wherein the panes or panels are made weatherproof by the application of putty or other sealing compound or material, the panes or panels are preliminarly secured by the glazing points or fasteners as hereinabove set forth, the aim being to apply the fastener with sufficient security to hold the pane or panel in place, but with considerable looseness in order to avoid strainin pressure upon the glass and to permit such expansion and contraction of the glassand supportting frame or sash as ordinarily occurs due to changes in atmospheric conditions.

. The device of the present invention is designed 5 for practical use as a glazing fastener which may be readily applied with but little or no liability of breaking the glass, even at the hands of an operator not specially skilled in the work, and which will obviate in a large measure all the disadvantages incident to the use of the ordinary fasteners, and to attain such advantages as will hereinafter more fully appear.

The invention consists in the novel form and arrangement of the device as will be hereinafter described and pointed out with particularity in the appended claim.

In the accompanying drawing, illustrating a practical adaptation of the invention,

Fig. 1 is a fragmentary plan view of a portion of a supporting frame or sash and cooperating glazing .as applied thereto and secured by fasteners in accordance with the present invention;

Fig. 2 is a fragmentary view, partly in section and partly in elevation, of the parts shown in Fig. 1; v

, Fig. 3 is a section taken on or about the line '3-3 of Fig; 2;

Fig. 4 is a plan view of one form of the fastener of the present invention detached;

Fig. 5 is a side elevation of the fastener shown in Fig. 4;

Fig. 6 is a section taken on or about the line 66 of Fig. 5;

Fig. 7 is a view showing a cross-section of a modified form of the fastener; and

Fig. 8 is a similar view of a further modification of the fastener. 7

Referring now to the drawing, the numeral l0 designates a'supporting frame or sash, in the par- 40 ticular illustration being that of the roof structure of a greenhouse or the like. As shown, the frame or sash Ill is rabbeted, as at H, to provide a supporting shoulder I2 on which the glass panes or panels l3, l4, and I5, are marginally seated in the usual way, that is to say, the pane or panel l3, which may be the lowermost panel on the inclined roof, is shown resting fiatwise throughout on the supporting shoulder l2, while the next adjacent pane or panel M has its lower marginal portion overlapping the adjacent upper portion of the pane or panel I3, the upper edge portion of said pane or panel l4 resting on the shoulder I2 and being overlapped by the lower marginal portion of the next adjacent pane or panel I5, this being the weather resistant and water shedding arrangement in the usual greenhouse or other glass roofed structure.

In accordance with the usual method of fastening the glass panes or panels in place on the suporting frames or sashes Ill or the like, glazing points or fasteners, designated generally by the reference numeral I 6 in the present illustrative drawing, are driven transversely into the frame or sash ID with the protruding portions of the fasteners overlying the upper faces of the panes or panels I 3, I4, I5. In this connection it may be here particularly noted that the fastener I6 which is applied near the upper marginal portion of each panel abuts the edge of the overlapping lower marginal portion of the next adjacent pane or panel, this particular fastener serving the dual function of retaining the underlying pane or panel on the shoulder I2 while resisting endwise downward movement of the overlying pane or panel, the fastener l6 next adjacent retaining the lower marginal portion of the upper adjacent pane or panel.

The essential feature of the glazing point or fastener of the present invention is in the symmetrical and balanced parallel form of the sides of the device. As shown in Figs. 1 to 6, inclusive, of the drawing, the body of the fastener I6 is of a cross-section in which the top and bottom sides are respectively flattened, as at IT, I8, while the opposite lateral sides are preferably rounded, as at I9, 26, and shown more clearly in Fig. 6. At one end of the body is a head portion 2| which is offset from the upper flat side I 1, said head being preferably of a width not greater than the overall width between the rounded lateral sides I9 and 20, and the projecting end portion of the head 2| being preferably of rounded contour, as at 22.

As hereinabove stated, the body of the fastener of the present invention has symmetrically parallel sides, or, in other words, it is straight and without taper throughout, except that the end opposite to that at which the head portion 2| is provided, is sharpened to permit the fastener to be driven readily into the supporting frame or sash l0 without drifting obliquely or diagonally. Preferably, the end portion is tapered and beveled, as at 23, in equally balanced relation on every side of the longitudinal axis of the straight body portion of the fastener. The form of the fastener as illustrated in Figs. 1 to 6, inclusive, of the drawings, is not only practical for the particular use for which the fastener is intended, but it is readily and economically produced in manufacture in a cutting and swaging machine from a wire or rod of round cross-section, or it may be obviously produced in the same shape through any other process of manufacture. Obviously, the fastener may be made of a metal of the character of zinc or other suitable rust resistant metal, or plated for the purpose of withstanding the action of the elements.

In addition to the facility with which the symmetrically formed non-tapering body of the device with an axially centered and balanced pointed end may be driven without a tendency to drift and bind the glass pane or panel, the offset head portion 2| affords ample surface for the application of the driving hammer or tool, as well as a shoulder for engagement in case it is necessary or desirable to withdraw the fastener at any time after it is applied, and there is a still further and important advantage in the correlation of the offset and peripherally rounded head portion 2| to the flattened bottom side face i8 whereby the fastener will always right itself when dropped on a table, shelf or other flat surface, being self-seating upon said flat surface I8 with the head portion projected upwardly, which is the natural position from which to pick up the fastener when it is to be applied, thus obviating undue fumbling in the handling and application of the device in use.

As shown in Figs. 7 and 8 of the drawing, the fastener may be modified somewhat in body crosssection, thebody portion I6 as shown in Fig. '7, having flattened top and bottom faces Il', I8, respectively, similar to the flattened body portion shown in Fig. 6, with the differencethat the lateral sides I9, 20' are flattened instead of being rounded as in the first herein described modification, while in the modification shown in Fig. 8 the body portion I6 is of square cross-section instead of oblong as shown in Fig. 7. So, too, it is obvious that the pointed end portion 23 may be formed by plain tapering instead of the beveled arrangement shown, and that the device may be modified in other respects than herein shown without in the least departing from the spirit and scope of the invention as defined by the appended claims. The invention, therefore, is not limited to the exact construction and arrangement shown.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

The herein described glazing fastener, comprising a longitudinally elongated body portion formed with straight non-tapering sides, the top and bottom sides being flattened and the opposite sides being rounded, one end portion being formed with a head laterally offset from the flattened top side of the device and having curved edges merging into the curves of the rounded sides, whereby the fastener always positions itself with the projecting portion of the head extending upwardly whenever the device is placed upon a plane surface the opposite end portion being sharpened.

JOHN DOMAGALL. 

